smptests/smp02/tasks.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /*
0004  *  COPYRIGHT (c) 1989-2011.
0005  *  On-Line Applications Research Corporation (OAR).
0006  *
0007  * Redistribution and use in source and binary forms, with or without
0008  * modification, are permitted provided that the following conditions
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0010  * 1. Redistributions of source code must retain the above copyright
0011  *    notice, this list of conditions and the following disclaimer.
0012  * 2. Redistributions in binary form must reproduce the above copyright
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0014  *    documentation and/or other materials provided with the distribution.
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0016  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0017  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0018  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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0021  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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0026  * POSSIBILITY OF SUCH DAMAGE.
0027  */
0028
0029 #ifdef HAVE_CONFIG_H
0030 #include "config.h"
0031 #endif
0032
0033 #include "system.h"
0034
0035 static void LogSemaphore(
0036   bool      obtained,
0037   uint32_t  cpu_num,
0038   uint32_t  task_index
0039 ){
0040   if (Log_index < LOG_SIZE) {
0041     /* Log the information */
0042     Log[ Log_index ].IsLocked   = obtained;
0043     Log[ Log_index ].cpu_num    = cpu_num;
0044     Log[ Log_index ].task_index = task_index;
0045     Log_index++;
0046   }
0047 }
0048
0049 rtems_task Test_task(
0050   rtems_task_argument task_index
0051 )
0052 {
0053   uint32_t          cpu_num;
0054   rtems_status_code sc;
0055
0056   cpu_num = rtems_scheduler_get_processor();
0057
0058   do {
0059
0060     /* Poll to obtain the synchronization semaphore */
0061     do {
0062       sc = rtems_semaphore_obtain( Semaphore, RTEMS_NO_WAIT, 0 );
0063     } while (sc != RTEMS_SUCCESSFUL );
0064
0065     LogSemaphore(true, cpu_num, task_index);
0066     LogSemaphore(false, cpu_num, task_index);
0067
0068     rtems_semaphore_release( Semaphore );
0069   } while(1);
0070 }